The word "avera" can be spelled with two different sounds of the letter "a". The first "a" sound, /æ/, is pronounced like the "a" in "cat" or "hat". The second "a" sound, /eɪ/, is pronounced like the "a" in "taste" or "grace". The first syllable is pronounced with the short /æ/ sound, while the second syllable is pronounced with the long /eɪ/ sound. The correct spelling of the word is essential to ensuring its correct pronunciation.